公开(公告)号：EP1478841B1

公开(公告)日：2005-07-13

申请号：EP02792634.4

申请日：2002-12-06

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter

IPC分类号： F02M57/02 ,  F02M59/30 ,  F02M59/08 ,  F02M59/44 ,  F02M45/06

CPC分类号： F02M45/06 ,  F02M47/027 ,  F02M57/02 ,  F02M59/366

摘要： The invention relates to a fuel-injection device comprising a high-pressure fuel pump (10) and a fuel injection valve (12), connected to said pump, for each cylinder of the internal combustion engine. The high-pressure fuel pump (10) comprises at least one pump plunger (18) that is driven by the internal combustion engine in a stroking motion, said plunger delimiting a plunger working chamber (22), to which fuel is supplied from a fuel reservoir (24). A connection (66) between the pump working chamber (22), a relief chamber (24) and a pressure source (23) for filling the pump working chamber (22) during the intake stroke of the pump plunger or plungers (18) is controlled at least indirectly by a control valve (68). The high-pressure fuel pump (10) has two pump plungers (18, 118), a second plunger (118) being displaced at least in an approximately coaxial manner inside the first pump plunger (18), whereby both pump plungers (18, 118) delimit the pump working chamber (22). The first pump plunger (18) is driven in a stroking manner and both pump plungers (18, 118) can be optionally coupled together, thus moving as a unit on the delivery stroke, or the second pump plunger (118) can be fixed in a passive position so that only the first pump plunger (18) executes a delivery stroke.

摘要翻译： 燃料喷射装置技术领域本发明涉及一种燃料喷射装置，其包括连接到所述泵的高压燃料泵（10）和燃料喷射阀（12），用于内燃机的每个气缸。 高压燃料泵（10）包括至少一个由内燃机以冲程运动驱动的泵柱塞（18），所述柱塞限定柱塞工作室（22），燃料从燃料 储存器（24）。 在泵柱塞或柱塞（18）的进气冲程期间，泵工作室（22），减压室（24）和用于填充泵工作室（22）的压力源（23）之间的连接（66）是 至少通过控制阀（68）间接控制。 高压燃料泵（10）具有两个泵柱塞（18,118），第二柱塞（118）至少以大致同轴的方式在第一泵柱塞（18）内移动，由此两个泵柱塞（18,18） 118）界定泵工作室（22）。 第一泵柱塞（18）以冲程方式被驱动，并且两个泵柱塞（18,118）可选地联接在一起，因此在输送行程上作为一个单元移动，或者第二泵柱塞（118）可以固定在 被动位置，使得只有第一泵柱塞（18）执行输送冲程。

公开(公告)号：EP1339968B1

公开(公告)日：2005-06-22

申请号：EP01997636.4

申请日：2001-11-16

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter ,  STERR, Andreas ,  DUTT, Andreas

IPC分类号： F02M59/36 ,  F02M41/14 ,  F02M59/46

CPC分类号： F02M59/466 ,  F02M41/1411 ,  F02M59/366

摘要： An electromagnetic valve-controlled fuel injection pump for internal combustion engines, especially diesel engines, comprises an electromagnetic valve (18) whose valve needle (17), via a valve seat (16) located inside the pump body, disconnects a high-pressure area (14, 15) from a low-pressure area (21) or connects the high-pressure and low-pressure areas, whereby the duration of injection is controlled by the opening of the electromagnetic valve (18). In addition, a low-pressure compensating plunger (24), which is arranged inside the low-pressure area (21), is provided for compensating for variations in pressure inside this low-pressure area (21). The invention is characterized in that the low-pressure compensating plunger (24), which is arranged coaxial to the electromagnetic valve needle (17), is provided as a component that is separate from the electromagnetic valve needle (17). This ensures an unimpeded and thus fastest possible opening of the electromagnetic valve (18) by the opening force that the electromagnet exerts upon the electromagnetic valve needle (17).

公开(公告)号：EP1476655B1

公开(公告)日：2005-06-15

申请号：EP02792635.1

申请日：2002-12-06

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter

IPC分类号： F02M57/02 ,  F02M59/10 ,  F02M47/02 ,  F02M59/44

CPC分类号： F02M47/027 ,  F02M45/04 ,  F02M45/08 ,  F02M57/02

摘要： The invention relates to a fuel injection system comprising a high pressure fuel pump (10) and a fuel injection valve (12) connected to said pump, for each cylinder of the internal combustion engine. A pump piston (18) of the high pressure fuel pump (10) defines a pump working area (22) which is connected to a pressure chamber (40) of the fuel injection valve (12). Said fuel injection valve comprises an injection valve element (28) which is used to control injection openings (32) and can be displaced against a closing force in an opening direction by means of the pressure in the pressure chamber (40). A connection (66) between the pump working area (22) and a discharge chamber (24) is controlled by a first control valve (68), and a connection (64) between a control pressure chamber (52) associated with the pump working area (22) and a discharge chamber (24) is controlled by a second control valve (70). A throttle point (63, 65) is respectively provided in connections (62, 64) between the control pressure chamber (52) and the pump working area (22) and between the control pressure chamber and the discharge chamber (24). Another pressure chamber (54) is connected to the pump working area (22) and is defined by a pressure surface (53) by which means another force is exerted on the injection valve element (28) in the closing direction.

摘要翻译： 本发明涉及一种燃料喷射系统，其包括高压燃料泵（10）和连接到所述泵的燃料喷射阀（12），用于内燃机的每个气缸。 高压燃料泵（10）的泵活塞（18）限定了连接到燃料喷射阀（12）的压力室（40）的泵工作区域（22）。 所述燃料喷射阀包括喷射阀元件（28），该喷射阀元件用于控制喷射开口（32）并且可借助于压力室（40）中的压力抵抗打开方向上的闭合力移动。 泵工作区域（22）和排放室（24）之间的连接（66）由第一控制阀（68）和与泵工作相关的控制压力室（52）之间的连接（64） 区域（22）和排出室（24）由第二控制阀（70）控制。 节流点（63,65）分别设置在控制压力室（52）和泵工作区域（22）之间以及控制压力室和排放室（24）之间的连接部（62,64）中。 另一个压力室（54）连接到泵工作区域（22）并且由压力表面（53）限定，通过该压力表面在关闭方向上将另一个力施加在喷射阀元件（28）上。

公开(公告)号：EP1521930A1

公开(公告)日：2005-04-13

申请号：EP03714673.5

申请日：2003-03-03

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter ,  NENTWIG, Godehard

IPC分类号： F16K17/04 ,  F02M59/46

CPC分类号： F02M63/025 ,  F02M63/0036 ,  F02M63/0052 ,  F02M63/0225 ,  F16K17/0406 ,  Y10T137/7928

摘要： The invention relates to a pressure-relief valve comprising a closing element (4), which can be displaced axially in an opening direction (3) in a bore, against the force of a closing spring (13) that acts in a closing direction (26). The inventive valve is characterised in that when the pressure-relief valve is closed, the closing element (4) lies against a valve seat (5), closing an inlet (7) and that a piston (8), which is connected to the closing element (4) by means of a connecting element (9) and which can be displaced axially in the inlet (7), is integrated into the inlet (7).

摘要翻译： 本发明涉及一种压力释放阀，该压力释放阀包括闭合元件（4），该闭合元件能够克服作用在闭合方向上的闭合弹簧（13）的力而在开口方向（3） 26）。 本发明的阀的特征在于，当泄压阀关闭时，关闭元件（4）抵靠阀座（5），关闭入口（7）并且关闭活塞（8） 关闭元件（4）借助于连接元件（9）并且可以在入口（7）中轴向移动，并被集成到入口（7）中。

公开(公告)号：EP1478841A1

公开(公告)日：2004-11-24

申请号：EP02792634.4

申请日：2002-12-06

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter

IPC分类号： F02M57/02 ,  F02M59/30 ,  F02M59/08 ,  F02M59/44

CPC分类号： F02M45/06 ,  F02M47/027 ,  F02M57/02 ,  F02M59/366

摘要： The invention relates to a fuel-injection device comprising a high-pressure fuel pump (10) and a fuel injection valve (12), connected to said pump, for each cylinder of the internal combustion engine. The high-pressure fuel pump (10) comprises at least one pump plunger (18) that is driven by the internal combustion engine in a stroking motion, said plunger delimiting a plunger working chamber (22), to which fuel is supplied from a fuel reservoir (24). A connection (66) between the pump working chamber (22), a relief chamber (24) and a pressure source (23) for filling the pump working chamber (22) during the intake stroke of the pump plunger or plungers (18) is controlled at least indirectly by a control valve (68). The high-pressure fuel pump (10) has two pump plungers (18, 118), a second plunger (118) being displaced at least in an approximately coaxial manner inside the first pump plunger (18), whereby both pump plungers (18, 118) delimit the pump working chamber (22). The first pump plunger (18) is driven in a stroking manner and both pump plungers (18, 118) can be optionally coupled together, thus moving as a unit on the delivery stroke, or the second pump plunger (118) can be fixed in a passive position so that only the first pump plunger (18) executes a delivery stroke.

公开(公告)号：EP1434938A1

公开(公告)日：2004-07-07

申请号：EP02769925.5

申请日：2002-09-06

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter ,  KANNE, Sebastian

IPC分类号： F02M57/02

CPC分类号： F02M57/026 ,  F02M55/002 ,  F02M57/025 ,  F02M59/105 ,  F02M2200/00

摘要： The invention concerns a fuel injection system for a direct injection internal combustion engine, comprising a fuel injection device (16) capable of directly injecting fuel in an internal combustion engine combustion chamber and having a valve closure (70). Said closure is adjacent to a working chamber (79), the position of the closure (70) depending on the pressure prevailing in the working chamber (79). A pressure multiplicator or demultiplicator piston (54) is adjacent on one side to a control chamber (96) and on the other to a high-pressure chamber (76). A fuel supply can apply different pressures to the control chamber (96). The invention is characterized in that in order to improve the emission behaviour of an internal combustion engine equipped with said direct fuel injection system, the multiplicator or demultiplicator piston (54) is integrated with the fuel injection device (16) and the high-pressure chamber (76) is integrated with the working chamber (79).

公开(公告)号：EP1407131A1

公开(公告)日：2004-04-14

申请号：EP02760089.9

申请日：2002-07-10

申请人： ROBERT BOSCH GMBH

发明人： MACK, Gerhard ,  BUEHLER, Christoph ,  BOEHLAND, Peter ,  KUEGLER, Thomas ,  JACOB, Adrian ,  WENGERT, Andreas ,  POTZ, Detlev DI

IPC分类号： F02M45/08 ,  F02M47/02

CPC分类号： F02M47/027 ,  F02M45/086 ,  F02M47/043 ,  F02M2200/46

摘要： The invention relates to a fuel injection valve comprising a housing (1) in which an outer valve needle (10) is situated inside a boring (9) and interacts with a valve seat (23) in order to control at least one injection opening (20). A pressure space (14) that is filled with fuel is provided inside the housing (1) and acts upon a pressure shoulder (13) on the outer valve needle (10) whereby subjecting the outer valve needle (10) to an opening force directed away from the valve seat (23). The outer valve needle (10) is at least indirectly subjected to the action of the pressure, which is located inside a first control space (28), in the direction of the valve seat (23), whereby the pressure inside the first control space (28) can be controlled. An inner valve needle (12) is situated inside a longitudinal boring of the outer valve needle (10) in a manner that permits it to be longitudinally displaced. Said inner valve needle controls at least one additional injection opening (20) and has an inner valve sealing surface (26), which can be subjected to the action of the pressure inside the pressure space (14) and via which an opening force acts upon the inner valve needle (12).

摘要翻译： 本发明涉及一种燃料喷射阀，其包括壳体（1），外部阀针（10）位于钻孔（9）内并与阀座（23）相互作用以控制至少一个喷射孔 20）。 充满燃料的压力空间（14）设置在壳体（1）内并且作用在外部阀针（10）上的压力肩部（13）上，由此使外部阀针（10）受到指向打开力 远离阀座（23）。 外部阀针（10）至少间接地受到位于第一控制空间（28）内部的压力作用，朝向阀座（23）的方向，由此第一控制空间 （28）可以被控制。 内阀针（12）以允许其纵向移位的方式位于外阀针（10）的纵向孔内部。 所述内部阀针控制至少一个附加注射开口（20）并且具有内部阀密封表面（26），所述内部阀密封表面能够经受压力空间（14）内的压力的作用并且打开力经由所述内部阀密封表面 内阀针（12）。

公开(公告)号：EP1387940A1

公开(公告)日：2004-02-11

申请号：EP02735007.3

申请日：2002-03-22

申请人： ROBERT BOSCH GMBH

发明人： EGLER, Walter ,  BOEHLAND, Peter ,  KANNE, Sebastian

IPC分类号： F02M47/02 ,  F02M55/04

CPC分类号： F02M47/027 ,  F02M55/04 ,  F02M2200/315

摘要： The invention relates to a fuel injection valve for internal combustion engines, comprising a housing (12), in which a piston-shaped valve member (35) is arranged in a longitudinally displaceable manner in a bore (34). The end on the combustion chamber side of said valve member connects at least one injection port (39) to a pressure chamber (37) embodied in the housing (12) by means of a longitudinal movement in opening direction. An inlet channel (14) is configured in the housing (12), which leads to the pressure chamber (37) and by means of which the pressure chamber (37) can be filled with fuel at high pressure. A control chamber (20) filled with fuel is also configured in the housing (12), wherein the pressure in the control chamber (20) exerts at least indirectly a force upon the valve member (35) acting in closing direction. The control chamber (20) is connected to the inlet channel (14) and can be connected to the leak oil chamber (23) by a control valve (16), in which the pressure is significantly lower than in the inlet channel (14). A damping chamber (46) is configured in the housing (12), which is connected to the inlet channel (14) by means of a throttle (44).

摘要翻译： 用于内燃机的燃料喷射阀技术领域本发明涉及一种用于内燃机的燃料喷射阀，其包括壳体（12），其中活塞形阀构件（35）以纵向可移动的方式布置在孔（34）中。 所述阀构件的燃烧室侧的端部通过打开方向上的纵向运动将至少一个喷射口（39）连接到构造在壳体（12）中的压力室（37）。 入口通道（14）构造在壳体（12）中，该通道通向压力室（37）并且压力室（37）能够通过该入口通道以高压填充燃料。 填充有燃料的控制室（20）也构造在壳体（12）中，其中控制室（20）中的压力至少间接地施加作用在阀构件（35）上的作用在关闭方向上的力。 控制室20连接到入口通道14并且可以通过控制阀16连接到泄漏油室23，其中压力显着低于入口通道14中的压力， 。 阻尼室（46）构造在壳体（12）中，其借助节流阀（44）连接到入口通道（14）。

公开(公告)号：EP1234112A1

公开(公告)日：2002-08-28

申请号：EP01999739.4

申请日：2001-12-05

申请人： ROBERT BOSCH GMBH

发明人： EGLER, Walter ,  FERRARO, Giovanni ,  EGELER, Hansjörg ,  BRENK, Achim ,  KLENK, Wolfgang ,  BOEHLAND, Peter ,  TESCHNER, Werner ,  KANNE, Sebastian ,  KAHLEYSS, Ingolf ,  GORDON, Uwe ,  MACK, Manfred

IPC分类号： F02M55/04 ,  F02M63/02

CPC分类号： F02M63/0007 ,  F02M55/04 ,  F02M61/16 ,  F02M63/0225 ,  F02M2200/315 ,  F02M2200/40

摘要： The invention relates to a fuel injection system comprising a fuel injection valve (15) and a control valve (50). Said control valve (50) has a control valve element (54) that can be longitudinally displaced inside a control valve boring (52). A control valve sealing surface (55) is provided on the control valve element (54) and interacts with a control valve seat (56) thereby controlling the connection of a first pressure space (57) to a second pressure space (58). The first pressure space (57) is connected to a high-pressure accumulating space (10). A boring (30) is provided inside a valve body (25) and, inside said boring, a piston-like valve needle (32), with its combustion chamber-side end, controls the opening of at least one injection opening (38) by executing a longitudinal movement while being subjected to the action of the pressure inside a pressure chamber (31). Said pressure chamber (31) is connected to the second pressure space (58) via a supply channel (28). The first supply space (57) is connected via a restrictor (72) to a damping space (70), which is configured as a pocket boring and otherwise closed, whereby rapidly damping pressure vibrations occurring when the control valve (50) closes.

公开(公告)号：EP1133636A1

公开(公告)日：2001-09-19

申请号：EP00978946.2

申请日：2000-09-19

申请人： ROBERT BOSCH GMBH

发明人： BONSE, Bernhard ,  EGLER, Walter ,  BOEHLAND, Peter ,  WOHLLEBER, Klaus ,  SCHMIDT, Joerg ,  HOFMANN, Karl

IPC分类号： F02M59/10 ,  F02M57/02

CPC分类号： F02M59/105

摘要： The invention relates to a fuel injection system for internal combustion engines with pressure intensifiers (11). The fuel is conveyed from the low-pressure fuel supply (7) into the injection nozzle (1) via a conveyor line (21) and proportioned in terms of type and quantity with the high-pressure part (5) of the injection pump (3), by means of a control line (9).

摘要翻译： 用于具有增压器（11）的内燃机的燃料喷射系统 燃料通过输送管线（21）从低压燃料供应装置（7）输送到喷射喷嘴（1）中并且与喷射泵的高压部分（5）的类型和数量成比例 3），通过控制线（9）。